Shoulders Muscle - 101

Shoulders Muscle - 101

Shoulder muscle
is, to a great extent, determined by skeletal structure. That is
something you are born with. There is another type of physique which is
characterized not by narrowness through the shoulders, but by a
"hanging" look.

The other
factor involved in a wide-shouldered look is the development of the side
deltoids, When these muscles are fully developed, you get a very
impressive display when they are flexed. The ideal look for the
competition bodybuilder is to have both a square bone structure and
great side deltoid development.

Incidentally,
bodybuilders noted for fantastic deltoid development are usually also
known for enormous shoulder strength. But width - and the development of
the side head of the deltoid is only one aspect of the total development
of the deltoid muscles. Shoulders also need to be thick, to show
development in the front and the rear, to tie in properly to the
pectorals and the biceps as well as to the traps and the rest of the
back.

The deltoids
are extremely versatile. In order to move the arm forward, back,
side-to-side, up and around, the deltoids have three distinct lobes of
muscle called heads: the anterior (front) head, the medial (side) head,
and the posterior (rear) head.

The deltoids
play a prominent part in virtually every bodybuilding pose. They add to
your width and size in a front double-biceps pose; to your muscularity
in a most-muscular pose. The thickness and development of all three
heads play an important part in poses seen from the side, such as the
side chest shot or triceps pose. From the rear, the effect of a pose
like the rear double-biceps is highly dependent on how much shape,
separation, and definition you have achieved in the rear delts.